Keep SSH tunnel open (PostgreSQL example)

Check if SSH tunnel is open and open it, if it isn't.
NB: In this example, 3333 would be your local port, 5432 the remote port (which is, afaik, usually used by PostgreSQL) and of course you should replace REMOTE_HOST with any valid IP or hostname. The example above let's you work on remote PostgreSQL databases from your local shell, like this:
psql -E -h localhost -p 3333

What Others Think

OK, I can see this would be useful. A poor man's VPN.
This would be OK if ssh kept crashing, but a if your connection's intermittent,
a better alternative might be to enable: ClientAliveInterval, ClientAliveCountMax
man 5 sshd_config

What do you think?

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